---
title: http.host
description: The hostname used in the full request URI.
image: https://developers.cloudflare.com/core-services-preview.png
---

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#  http.host 

`http.host` ` String ` 

The hostname used in the full request URI.

The `http.host` field contains the `Host` header from the original client request.

If you have configured [Origin Rules](https://developers.cloudflare.com/rules/origin-rules/) that change the hostname, this change is not reflected in the `http.host` value seen by other rule phases (such as custom rules, cache rules, or transform rules) or [Cloudflare Workers](https://developers.cloudflare.com/workers/). All rule phases and Workers evaluate against the original, unmodified host.

Example value:

```
"www.example.org"
```

Categories: 
* Request
* URI

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```